Function parse_path 

pub(crate) fn parse_path(input: &str) -> IResult<&str, (&str, &str)>

Parse an S3-style request path into (bucket, object_path).

The expected format is /<bucket>[/<object_path>].

• /my-bucket → ("my-bucket", "/")
• /my-bucket/prefix/key → ("my-bucket", "/prefix/key")

Errors

Returns a nom error if the input is empty or does not start with /.